Injection device



May 24, 1949. Y Q CHAFFEE 2,471,142

INJECTION DEVICE Filed April 24, 1945 Patented May 24, Y1949 UNITED STATES PATENT GFFICE INJECTION DEVICE Floyd O. Chaee, South Gate, Calif.

Application April 24, 1945, Serial No. 590,083

v Claims. 1

My present invention relates to an injection device for adding a reacting agent to a liquid, and particularly to an apparatus for adding a watersoftener to a water receiver, and more particularly to cooling radiators of internal combustion engines.

One of the principal objects of this invention is to provide means for supplying a reacting agent, such as a water-softener, to a liquid receiver, such as a cooling radiator, as the receiver or radiator is replenished with liquid or Water contained therein.

Another important object of this invention is to provide a head, for the upper end of a cooling radiator for internal combustion engines, to which is adapted to be connected a supply of water softening liquid under pressure, and in which the connection of the latter to the head is made when the radiator is replenished with cooling water through the head, either by physical contact of the nozzle of the water supply means with a controlling valve, or by reason of the weight or force of the water from said water supply means.

An important object also of this invention is to provide means of this class whereby the proportional amount of the water softening liquid to the replenishing water for the radiator, may be readily varied, and also in which the force required for opening the valve connecting the water softening liquid to the radiator may vbe also readily varied, to compensate for varying engagement by the nozzle of the water supply means, or the force of water issuing from said nozzle.

A further important object of this invention is to provide means of this class which may be readily connected to various styles and types of Water receivers or radiators, and which may be readily installed on various types of vehicles.

A still further important object of this invention is to provide a means of this class which is relatively simple and economical of construction proportionate to its functions, and which will not readily get out of order.

With these and other objects in view, as will appear hereinafter, I have devised an injection device having certain novel features of construction, combination, and arrangement of parts and portions, as Will be hereinafter described in detail and particularly set forth in the appendedy jection device, incorporating my invention, for' adding a water softening agent to the radiator of an internal combustion engine, the principal part of the injection device being shown in section and taken substantially on the line I--l of Fig. 2.

Fig. 2 is a transverse sectional View thereof taken through 2-2 of Fig. 1; and

Fig. 3 is a sectional view through the median portion of the principal part of the injection device in a slightly modified form.

In the drawings, I designates the upper portion of a cooling radiator of an internal combustion engine, such as used on automobile trucks. On the neck la at the top of the radiator, over which is usually secured the radiator cap, is secured the principal portion of my injection device. The injection device may be directly secured thereto by screwing the lower portion 2a of the receptacle or head 2 thereof into the neck. If necessary, a suitable adapter (not shown) may be used for connecting the head to the top of the radiator.

The head or receptacle 2 is cylindrical and is here shown as contracted at its lower and upper ends. The upper end is open, as indicated by 2b, the latter providing a filling opening for the radiator. The usual radiator cap, designated 3, is removably secured over the filling opening 2b.

Conveniently arranged on the vehicle is a Water softener supply means, which in this instance consists of a tank 2|, and this tank is connected by a tube 22 to the side of the receptacle 2. The discharge end of the tube 22 is connected through a passage 2 to a chamber 4E at the lower end of a valve cage 4. This valve cage is located at the axial portion of the cylindrical receptacle 2. The chamber la communicates with the upper end of the valve cage through a coaxial bore 4b. Between the chamber 4a and the bore 4b is a valve seat 4C against which is seated a ball valve 5, the ball valve being forced against the seat by a compression spring S contained in a well la of a spring retainer l. The spring retainer is held against the lower end of the valve cage by screws 8. The tension of the spring 6 may be adjusted by a screw 9 from the lower end of the spring retainer.

The valve cage 4 is supported centrally within the receptacle by a spider it, the passage 2c extending from the wall of the receptacle 2 through one of the arms of the spider.

Into the upper end of the bore 4b extends the lower end of the valve stem Il, the cross-section of the lower end being fluted or of polygonal cross-section to allow passage of the water softening fluid from the passage 2c into the bore 4b.

To the upper end of the valve stem is secured a baille I2 which is preferably of a diameter slightly less than the opening 2b. Through the wall of the opening 2b extend retaining screws I3 which hold the baffle and the valve stem in position. This baffle is preferably perforated as shown.

As Water is added to the radiator I through the inlet opening 2b, by means of a nozzle (notshown) of the water supply means, the nozzle may engage the baffle I2 and depress the same to facilitate the discharge of water through the head or receptacle 2 into the radiator. At the same time the stem I I unseats the valve 5 and allows the water softening liquid to be forced upwardly to thev top of the bore 2b to allow the water softening liquid to be directed into the stream of water ilowing into the radiator.

If the stream of water from the above mentioned discharge nozzle is of suicient force, this force will cause depression` of the baille I2 in the .manner above stated.

The .bailie I2 may also be located a suiiicient distance below the neck end of the top of the receptacle 2 so that the weight of the water on the baffle unseats the valve 5.

At the side of the receptacle or head 2 is a boss 2d to which the discharge end of the tube. l may be connected. This boss has preferably an enf larged recess 2e which connects the tube 22 to the passage 2. In the end of the boss I have chown a needle valve I5 for adjusting the opening from the recess 2e to the passage 2C, thereby controlling the ow of water softening liquid into the passage 2c.

In the modied structure, shown in Fig. the head or receptacle, designated 3i, has a baffle 32 which is pivoted at oneend 5:32a within a recess in a laterally offset portion 3l at one side oi the receptacle or head. In the offset portion, providing the pivotal support for the baffle, is reciprocally mounted a cylindrical valve 33, the upper end oi which engages the lower side of the pivoted baffle 32 near its pivoted end. A spring 3e is provided at the lower end of the valve and retained by a screw 35. Intermediate the ends of the valve 33 is a ri.- duced portion 33a which, when the valve is forced downwardly by the baiiie 32, connects the passages 3`Ib and 3I and allows water softening liquid to flow from the supply tube 22 into the interior of the head or receptacle 3 I.

I claim:

1. In a means of the class described, a water receiver, a water inlet receptacle, open at its upper end, positioned at the upper portion of the receiver, a reacting agent supply means connected to the receptacle, a valve within said receptacle for controlling the flow of reacting agent from said supply means to said inlet receptacle, and means for normally and yieldably holding the valve in a closed position and the stem in a raised position said valve having a stem extending toward the open end of the receptacle and so constructed an'd located so as to be capable of being engagedv by a, water supply means capable of discharging water into the receptacle for unseating the valve.

2. In a means of the class described,4 a water receiver, a water inlet receptacle, open at its-upper end, positioned at the upper portion of thereceiver, a reacting agent supply means connected to the receptacle, a valve within said` receptacle tor controlling the flow of reacting agent from said supply mea-ns to said inlet receptacle, and means for normally and yieldably holding theval-ve ina closed position and the stem in a raised position said valve having a stem extending toward the open end of the receptacle and so constructed and located so as to be capable of being engaged by a water supply means capable of discharging water into the receptacle for unseating the valve, the discharge of the reacting agent supply means being directed into the path of water through the receptacle.

3. In a means of the class described, a water receiver, a Water inlet receptacle, open at its upper end, positioned at the upper portion of the receiver, a reacting agent supply means connected to the receptacle, a valve wi-thin said receptacle for controlling the ow of reacting agent from said supply means to saidinlet receptacle, and means for normally and yieldably holding the valve in a closed position and the stem in a raised position said valveghaving a stem provided at its upper end with a baie positioned near but below the open end of the receptacle and so constructed andY located as to be capable of being depressed by the water issuing from a water supply means capable of discharging water into the receptacle for unseating the valve.

4. In a means of the class described, a water receiver, a water inlet receptacle, open at its upper end, positioned at the upper portion of the receiver, a reacting agent supply means connected tothe receptacle@ valve within said receptacle for controlling the flow of reacting agent from said supply means to said inlet receptacle, and means for normally and yieldably holding the valve in a closed position and lthe steml .in a raised position said valve having a stem provided at its upper end with a baffle positioned near but below the open endl of the receptacle and so constructed and located. asV to be capable of being depressed by vWater issuing from. a water supply means capable of discharging. water into the receptacle for unseating the valve, the discharge of the reacting agentl supply means .being directed into the path of water through the receptacle.

5. In a means of the class described, a radiator having an open hollow head at its upper end, a

water-softener supply means connected to the head, a valve within the head for controlling the flow of water-softener from said supply means to said head, and means for normally and yieldably holding the valve in a closed position and the stern in a raised position said valve having a stem extending toward the opening of the head and so constructedand located so as to be capable of being engaged by a water supply means capable oi discharging water into the head through the opening` thereof for unseating the valve.

6. In a means of the class described, a radiator having anv open hollow head, at its upper a water-softener supply means connected to the head, a valve within the head for controlling the flow of` water-softener from said supply means to Said head, and means for normally and yieldably holding the valve in a closed position and the stern in a raised. position said valve having a stem eX- tending towardl the opening of the head and so constructedand located so as to be capable of bcing engaged by a water supply means capable of discharging water into the head through the opening thereof, the discharge of the supply means being directed upwardly around the stem into the stream of water flowing through the head from the opening thereof for unseating the valve.

7. In a means of the class described, a radia tor having an open hollow head at its upper end, ai water-softener supply means connected to the head, a valve within the head for controlling the flow of water-softener from said supply means to said head, and means for normally and yieldably holding the valve in a closed position and the siem in a raised position said valve having a stein provided at its upper end with a baffle positioned near the opening of the head and so constructed and located as to be capable of ,being depressed by the Water issuing from a water supply means capable of discharging water into the head through the opening thereof for unseating the valve.

8. In a means of the class described, a radiator having an open hollow head at its upper end, a water-softener supply means connected to the head, a valve within the head for controlling ow of water-softener from said supply means to said head, and means for normally and yieldably holding the valve in a closed position and the stern in a raised posi-tion said valve having a ster` pron vided at its upper end with a bafe p near the opening of the head and so coi and located as to be capable of being de; by the water issuing from a water supply inecapable of discharging water into the head through the opening thereof, the discharge cf i supply means being directed upwardly aronn stem into the stream of water owmg thro-r, the head from the opening thereof for unseati the valve.

9. In an attachment for automobile radiators having a filling opening, an inlet receptacle at.- tachable over the opening of the radiator and open at its upper end, a reacting agent su piy means connected to the receptacle, a valve wit-l 5 said receptacle for controlling the flow of rea ing agent from said supply means to said inlet receptacle, and means for normally and fell" ably holding the valve in a closed position and the stem in a raised position said valve having a stern extending toward the open end of the receptie/ie and so constructed and located so as to be capable of being engaged by a Water supply means capable of discharging water into the receptacle for unseating the valve.

10. In an attachment for automobile radiators having a lling opening, an inlet receptacle attachable over the opening of the radiator and open at its upper end, a reacting agent supply means connected to the receptacle, a valve within said receptacle for controlling the flow of reacting agent from said supply means to said inlet receptacle, and means for normally and yieldably holding the valve in a closed position and the stem in a raised position said valve having a stein provided at its upper end with a bafe positioned near but below the open end of the receptacle and so constructed and located as to be capable of being depressed by the water issuing from a water supply means capable of discharging water into the receptacle for unseating the valve.

FLOYD O. CHAFFEE.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 854,445 Weaver May 21, 1907 857,564 Leopold et al June 18, 1907 888,469 Case et al. May 26, 1908 1,680,103 Hardy Aug. 7, 1928 1,883,139 Walter Oct. 18, 1932 1,937,893 Hutton Dec. 5, 1933 1,996,942 Welp Apr. 9, 1935 2,002,337 Bullum May 21, 1935 2,172,951 Barclay et al Sept. 12, 1939 2,225,087 Tade Dec. 17, 1940 2,230,004 Morgan Jan. 28, 1941 2,244,698 Hinsch June 10, 1941 2,369,232 Hinton Feb. 13, 1945 FOREIGN PATENTS Number Country Date 241,361 Great Britain Oct. 22, 1925 626,413 France May 9, 1927 

